Tire construction



- July 8 1930.

F. w. KRONE v 1,770,313

TIRE CONSTRUCTION Filed Sept. 21, 1927 l/l/l/l/J llllllllllll [N V EN TOR.

F W 15mm? BYMW A TTORNEYS.

Patented July 8, 1930 I p I I I i g UNITED STATES PATENT OFFICE FREDERICK w. KRONE, or SAN FRANCISCO, CALIFORNIA I TIRE CONSTRUCTION I; 7 Application filed September 21, 1927. Serial No. 221,014..

This invention relates to improvements in rim by fastening elements 14, the plate 11 cotire constructions, and has particular referoperating with the rim through the medium ence to a novel means for counter-sinking the of the fastening elements serves to hold the valve stem in the inner tube of a tire. v counter-sunk valve in a fixed position within Another object of this invention is to prothe cushion element so that all danger of a 65 vide a simple arrangement of the valve stem bending or distortion of the valve stem will within the tube so that should the tire become be eliminated. deflated, danger of the valve stem cutting It is to be noted that the lock nut contacts the tube as the wheel revolves and a bending the plate 11, while'the rim 4 is apertured as at it or distortion of the valve stem, will be obvi- 15 so that the'collar 16 of the valve stem cover ated. 17 may be readily positioned about the lock Other objects and advantages will be apnut for the purpose of forcing the stem into parent during the course of the following deintimate contact with the plate 11, or for rescription. moving the lock nut when desired,

15 In the accompanying drawings forming a From the foregoing description, taken in part of this specification, and in which like connection with the accompanying drawing, numerals are employed to designate like parts it will be evident that I have devised a novel throughout the same, arrangement of the valve stem within the Figure l is a section through a tire d1scushion element that will readily accomplish .7 20 closing the valve stem in elevation, all theobjects set forth. 7

Figure 2 is a sectional detail disclosing to It is to be understood that the form of my advantage the valve cap for holding the valve invention herewith shown and described is to nut forming a part of my invention, and be taken as a preferred example of the same Figure 3 is a side elevation of the valve and that various changes relative to the t 25 stem cover. shape, material, size and arrangement of In the accompanying drawings wherein for parts may be resorted to without departing the purpose of illustration is shown a prefrom the s irit of the invention or the scope ferred embodiment of my invention, the nuof the SllbJOlIlGd claim. u

meral 3 designates the casing of a balloon tire Having thus described my invention, I

30 provided with the usual rim 4 and a valve claim p stem 5, which stem penetrates the rim and ex- In combination with the wheel rim and cas-" tends within the tire. ing of an automobile tire, an inner tube hav- .As shown to advantage in Figure 1, the ing an annulus carried therein, a valve stem numeral 6 designates the inner tube which has being counter-sunk in the internal annulus, secured thereto a cushion element 7 This and means retaining said valve stem in a fixed cushion element is provided with re-enforcposition within said annulus, said means coming members 8 which extend through the prising a substantially rectangular plate havsame and may be either metal or fabric and ing pointed extremities embedded in the in- -serveto strengthen the tube and prevent a ternal annulus, fastening elements securing 40 spreading of the cushion element. said plate to the wheel rim and a-lock nut'sur- For the purpose of preventing-the valve rounding said valve stem and co-operating stem from cutting the tube as the wheel rewith said plate. 7 volves, I propose to counter-sink the valve 5 p In testimony whereof I atfix my signature. in the cushion element as indicated by the FREDERICK W. KRONE. 45 numeral 9 and when the valve stem is so counter-sunk to lock the same to the rim 4 as by a lock nut 10.

Surrounding the valve stem and secured within the cushion element is a plate 11 which 5 is connected-adjacent its extremities to the 

